The Habitability of Planets

Misha Glenny and guests discuss the origins and evolution of an alliance which transformed the geopolitics of the classical world: the Delian League. Since the start of the 5th Century BCE, city states across Greece had been fighting a series of armed conflicts in the Greco-Persi ...  Show more

Misha Glenny and guests discuss one of the towering figures of Brazilian and world literature, Machado de Assis (1839 - 1908). He was the descendant of slaves and built his career while slavery was still in place in Brazil (abolished 1888) and many of his characters were from the ...  Show more

Melvyn Bragg and guests discuss some of the great unanswered questions in science: how and where did life on Earth begin, what did it need to thrive and could it be found elsewhere? Charles Darwin speculated that we might look for the cradle of life here in 'some warm little pond ...  Show more

How did life on Earth start? To help answer that, researchers are trying to create some life for themselves. This is the second episode in our three-part series, Origins, about the beginnings and boundaries of life on Earth. For more, go to http://vox.com/unexplainable It’s a gre ...  Show more

Could human engineering stabilise the Earth's climate and chemistry in the long term? Tim Lenton of Exeter University explains why the Gaia hypothesis is the key to understanding the future of life on Earth. But what about life beyond Earth? Justin Rowlatt speaks to astronomer Li ...  Show more

Melvyn Bragg examines Extra Terrestrials. New planets have been observed far beyond our solar system and telescopes are being built that will enable us to look for water and oxygen on these distant planets. If water and oxygen are present, there is every reason to suppose that so ...  Show more